How did you spend your time for a month?
It's the App to aggregate events in Google calendar.

Classifying events by labels, totalizing their times by each labels, and visualizing them by graphs.

-How to use-
Firstly select Calendar, specify a period, and click Import button.
Reading of events from Google Calendar will start.

Next, label to shown events.
Click a event. Add new label or select a label from label list. A label attaches to the title of the event. Aggregation is done for each label.

After firming labelings, use Statistics.